The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows. Activity Description Immediate Predecessor Optimistic Time (weeks) Most Probable Pessimistic A Meet with board — 1 1 2 B Hire coaches A 4 6 8 C Reserve pool A 2 4 6 D Announce programme B, C 1 2 3 E Meet with coaches B 2 3 4 F Order team suits A 1 2 3 G Register swimmers D 1 2 3 H Collect fees G 1 2 3 I Plan first practice E, H, F 1 1 1

a. Draw a project network.

b. Develop an activity schedule.

c. What are the critical activities, and what is the expected project completion time?

d. If the club manager plans to start the project on February 1, what is the probability the swimming programme will be ready by the scheduled May 1 date (13 weeks)? Should the manager begin planning the swimming programme before February 1?